/*!
 * LaTeX.css (https://latex.now.sh/)
 *
 * Source: https://github.com/vincentdoerig/latex-css
 * Licensed under MIT (https://github.com/vincentdoerig/latex-css/blob/master/LICENSE)
*/

@font-face {
  font-family: 'Latin Modern';
  font-style: normal;
  font-weight: normal;
  font-display: swap;
  src: url('./fonts/LM-regular.woff2') format('woff2'),
    url('./fonts/LM-regular.woff') format('woff'),
    url('./fonts/LM-regular.ttf') format('truetype');
}

@font-face {
  font-family: 'Latin Modern';
  font-style: italic;
  font-weight: normal;
  font-display: swap;
  src: url('./fonts/LM-italic.woff2') format('woff2'),
    url('./fonts/LM-italic.woff') format('woff'),
    url('./fonts/LM-italic.ttf') format('truetype');
}

@font-face {
  font-family: 'Latin Modern';
  font-style: normal;
  font-weight: bold;
  font-display: swap;
  src: url('./fonts/LM-bold.woff2') format('woff2'),
    url('./fonts/LM-bold.woff') format('woff'),
    url('./fonts/LM-bold.ttf') format('truetype');
}

@font-face {
  font-family: 'Latin Modern';
  font-style: italic;
  font-weight: bold;
  font-display: swap;
  src: url('./fonts/LM-bold-italic.woff2') format('woff2'),
    url('./fonts/LM-bold-italic.woff') format('woff'),
    url('./fonts/LM-bold-italic.ttf') format('truetype');
}

/* Box sizing rules */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default margin */
body,
h1,
h2,
h3,
h4,
p,
ul[class],
ol[class],
li,
figure,
figcaption,
dl,
dd {
  margin: 0;
}

/* Make default font-size 1rem and add smooth scrolling to anchors */
html {
  font-size: 1rem;
  scroll-behavior: smooth;
}

body {
  font-family: 'Latin Modern', Georgia, Cambria, 'Times New Roman', Times, serif;
  line-height: 1.8;

  max-width: 80ch;
  min-height: 100vh;
  overflow-x: hidden;
  margin: 0 auto;
  padding: 2rem 1.25rem;

  counter-reset: theorem;
  counter-reset: definition;

  color: hsl(0, 5%, 10%);
  background-color: hsl(210, 20%, 98%);

  text-rendering: optimizeLegibility;
}

/* Justify and hyphenate all paragraphs */
p {
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
  -moz-hyphens: auto;
  margin-top: 1rem;
}

/* A elements that don't have a class get default styles */
a:not([class]) {
  text-decoration-skip-ink: auto;
}

/* Make links red */
a,
a:visited {
  color: #a00;
}

a:focus {
  outline-offset: 2px;
  outline: 2px solid hsl(220, 90%, 52%);
}

/* Make images easier to work with */
img {
  max-width: 100%;
  display: block;
}

/* Inherit fonts for inputs and buttons */
input,
button,
textarea,
select {
  font: inherit;
}

/* Prevent textarea from overflowing */
textarea {
  width: 100%;
}

/* Natural flow and rhythm in articles by default */
article > * + * {
  margin-top: 1em;
}

/* Styles for inline code or code snippets */
code,
pre,
kbd {
  font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New',
    monospace;
  font-size: 85%;
}
pre {
  padding: 1rem 1.4rem;
  max-width: 100%;
  overflow: auto;
  border-radius: 4px;
  background: hsl(210, 28%, 93%);
}
pre code {
  font-size: 95%;
  position: relative;
}
kbd {
  background: hsl(210, 5%, 100%);
  border: 1px solid hsl(210, 5%, 70%);
  border-radius: 2px;
  padding: 2px 4px;
  font-size: 75%;
}

/* Make table 100% width, add borders between rows */
table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
  max-width: 100%;
}
th,
td {
  text-align: left;
  padding: 0.5rem;
}
td {
  border-bottom: 1px solid hsl(0, 0%, 85%);
}
thead th {
  border-bottom: 2px solid hsl(0, 0%, 70%);
}
tfoot th {
  border-top: 2px solid hsl(0, 0%, 70%);
}

/* Center align the title */
h1:first-child {
  text-align: center;
}

/* Nested ordered list for ToC */
nav ol {
  counter-reset: item;
  padding-left: 2rem;
}
nav li {
  display: block;
}
nav li:before {
  content: counters(item, '.') ' ';
  counter-increment: item;
  padding-right: 0.85rem;
}

/* Center definitions (most useful for display equations) */
dl dd {
  text-align: center;
}

/* Theorem */
.theorem {
  counter-increment: theorem;
  display: block;
  margin: 12px 0;
  font-style: italic;
}
.theorem::before {
  content: 'Theorem ' counter(theorem) '. ';
  font-weight: bold;
  font-style: normal;
}

/* Lemma */
.lemma {
  counter-increment: theorem;
  display: block;
  margin: 12px 0;
  font-style: italic;
}
.lemma::before {
  content: 'Lemma ' counter(theorem) '. ';
  font-weight: bold;
  font-style: normal;
}

/* Proof */
.proof {
  display: block;
  margin: 12px 0;
  font-style: normal;
  position: relative;
}
.proof::before {
  content: 'Proof. ' attr(title);
  font-style: italic;
}
.proof:after {
  content: '◾️';
  position: absolute;
  right: -12px;
  bottom: -2px;
}

/* Definition */
.definition {
  counter-increment: definition;
  display: block;
  margin: 12px 0;
  font-style: normal;
}
.definition::before {
  content: 'Definition ' counter(definition) '. ';
  font-weight: bold;
  font-style: normal;
}

/* Center align author name, use small caps and add vertical spacing  */
.author {
  margin: 0.85rem 0;
  font-variant-caps: small-caps;
  text-align: center;
}

/* Make footnote text smaller and left align it (looks bad with long URLs) */
.footnotes p {
  text-align: left;
  line-height: 1.5;
  font-size: 85%;
  margin-bottom: 0.4rem;
}
.footnotes {
  border-top: 1px solid hsl(0, 0%, 39%);
}

/* Center title and paragraph */
.abstract,
.abstract p {
  text-align: center;
}
.abstract {
  margin: 2.25rem 0;
}

/* Format the LaTeX symbol correctly (a higher up, e lower) */
.latex span:nth-child(1) {
  text-transform: uppercase;
  font-size: 0.75em;
  vertical-align: 0.28em;
  margin-left: -0.48em;
  margin-right: -0.15em;
  line-height: 1ex;
}

.latex span:nth-child(2) {
  text-transform: uppercase;
  vertical-align: -0.5ex;
  margin-left: -0.1667em;
  margin-right: -0.125em;
  line-height: 1ex;
}

/* Heading typography */
h1 {
  font-size: 2.5rem;
  line-height: 3.25rem;
  margin-bottom: 1.625rem;
}

h2 {
  font-size: 1.7rem;
  line-height: 2rem;
  margin-top: 3rem;
}

h3 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
}

h4 {
  font-size: 1.2rem;
  margin-top: 2rem;
}

h5 {
  font-size: 1rem;
  margin-top: 1.8rem;
}

h6 {
  font-size: 1rem;
  font-style: italic;
  font-weight: normal;
  margin-top: 2.5rem;
}

h3,
h4,
h5,
h6 {
  line-height: 1.625rem;
}

h1 + h2 {
  margin-top: 1.625rem;
}

h2 + h3,
h3 + h4,
h4 + h5 {
  margin-top: 0.8rem;
}

h5 + h6 {
  margin-top: -0.8rem;
}

h2,
h3,
h4,
h5,
h6 {
  margin-bottom: 0.8rem;
}